I need the code for extracting the digital numbers from the color planes!
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Ali Ibrahim
le 25 Jan 2017
Commenté : Ali Ibrahim
le 26 Jan 2017
I need a code to extract the digital numbers from the three color planes--red, green, blue
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Image Analyst
le 25 Jan 2017
Look at impixelinfo() for telling you what the RGB values are as you mouse around.
Here are some snippets that might help you:
% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
% Recombine separate color channels into a single, true color RGB image.
rgbImage = cat(3, redChannel, greenChannel, blueChannel);
% Mask image must be converted to the same integer type
% as the integer image we want to mask.
mask = cast(binaryImage, 'like', rgbImage);
% Multiply the mask by each color channel individually.
maskedRed = redChannel .* mask;
maskedGreen = greenChannel .* mask;
maskedBlue = blueChannel .* mask;
% Recombine separate masked color channels into a single, true color RGB image.
maskedRgbImage = cat(3, maskedRed, maskedGreen, maskedBlue);
Also see my File Exchange for some color image demos:
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